Divide a Fraction by a Fraction

Prepare a Presentation

Work Time

Prepare a Presentation

Explain how you divided a fraction by a unit fraction. Use your work to support your explanation.

Challenge Problem

Below are two methods for dividing a fraction by a unit fraction.

Method 1
To divide a fraction by a unit fraction, multiply the numerator of the fraction by the denominator of the unit fraction.

Method 2
To divide a fraction by a unit fraction, rewrite both fractions so they have a common denominator. The answer is the quotient of the numerators.

  • Choose one of the methods. Use the division problem 45÷13 to explain why the method works.